Quoth the Biebs on The Twitter: "thanks for the love but there are alot of people out there who need prayers. im fine. just smacked my head and needed some water. all good."

The "Boyfriend" singer is on tour in support of his latest album, Believe, which will be the subject of an upcoming NBC concert special, Justin Bieber: All Around the World. The special, set for June 21 at 8 p.m. ET, will feature music performances and documentary footage -- perhaps of Bieber's glass-hitting episode.